LND3842/43/44/45
TYPICAL PERFORMANCE CHARACTERISTICS
R
T
(K
Ω
)
50
%
C = 200pF CT = 100pF
T
50
C = 500pF
T
CT = 1nF
CT =1nF
CT =2nF
CT =5nF
20
C = 10nF
T
CT = 5nF
CT =10nF
CT = 2nF
10
20
10
5
5
CT =500pF
CT =200pF
2
Vcc =15V
o
TA =25 C
1
10
20
30
50
100
200
300
500
1
2
Vcc =15V
o
TA =25 C
CT =100pF
f
OSC
(KHz)
10
20
30
50
100
200
300
500
f
OSC
(KHz)
Figure 1. Timing Resistor vs. Oscillator Frequency
Figure 2. Output Dead-Time vs. Oscillator Frequency
(dB)
90
80
V
cc
= 15V
V
O
= 2V to 4V
80
60
R
L
= 100K
T
A
= 25
o
C
70
40
60
20
50
0
40
1
2
3
4
5
6
-20
10
100
1K
10K
100K
1M
f (Hz)
Figure 3. Maximum Output Duty Cycle vs. Timing Resistor
Figure 4. Error Amp Open-Loop Gain vs. Frequency
•
Linear Dimensions, Inc.
•
445 East Ohio Street, Chicago IL 60611 USA
•
tel 312.321.1810
•
fax 312.321.1830
•
•
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